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The role of interfaces on the magnetic behavior of granular CuFeCo alloys

Ghafari, M. ; Volland, A. ; Hahn, Horst :
The role of interfaces on the magnetic behavior of granular CuFeCo alloys.
In: Physica Status Solidi A : Applications and Materials Science, 202 (10) pp. 2008-2012.
[Artikel], (2005)

Kurzbeschreibung (Abstract)

Granular thin films of face centered tetragonal (fct) FeCo-clusters in a γ-CuCo matrix show a giant magneto resistance effect. Cu100–x(Fe50Co50)x samples with 63 ≤ x ≤ 88 were examined using Mössbauer Spectroscopy, electron microscopy, Magnetoresistance, SQUID and Rutherford Backscattering Spectroscopy. In ultrafine particles with fct-FeCo imbedded in a CuCo matrix the giant magneto resistance effect is strongly correlated to the ratio of interface/bulk. The magnetic interfaces form an additional scattering centere for the electrons which causes an increase of the GMR effect.

Typ des Eintrags: Artikel
Erschienen: 2005
Autor(en): Ghafari, M. ; Volland, A. ; Hahn, Horst
Titel: The role of interfaces on the magnetic behavior of granular CuFeCo alloys
Sprache: Englisch
Kurzbeschreibung (Abstract):

Granular thin films of face centered tetragonal (fct) FeCo-clusters in a γ-CuCo matrix show a giant magneto resistance effect. Cu100–x(Fe50Co50)x samples with 63 ≤ x ≤ 88 were examined using Mössbauer Spectroscopy, electron microscopy, Magnetoresistance, SQUID and Rutherford Backscattering Spectroscopy. In ultrafine particles with fct-FeCo imbedded in a CuCo matrix the giant magneto resistance effect is strongly correlated to the ratio of interface/bulk. The magnetic interfaces form an additional scattering centere for the electrons which causes an increase of the GMR effect.

Titel der Zeitschrift, Zeitung oder Schriftenreihe: Physica Status Solidi A : Applications and Materials Science
Band: 202
(Heft-)Nummer: 10
Verlag: WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Fachbereich(e)/-gebiet(e): Fachbereich Material- und Geowissenschaften > Materialwissenschaften > Gemeinschaftslabor Nanomaterialien
Fachbereich Material- und Geowissenschaften > Materialwissenschaften
Fachbereich Material- und Geowissenschaften
Hinterlegungsdatum: 20 Nov 2008 08:24
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